wannacry | 2442da274b1ef9ff04268d191022f821e160fbfeba0114d24e1ea2ec631f78ad

General

Target

20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Size

5.0MB
MD5

cde980b30a0348cb7b628aa358fb1944
SHA1

dac63836eddd9825d6db44b5eecb5b9a3c4da78a
SHA256

2442da274b1ef9ff04268d191022f821e160fbfeba0114d24e1ea2ec631f78ad
SHA512

70e72faffc7437819cc4bb4199ce27be0097e85f89849e07de6c273af90b3d7eba2820c12a336b151200ffdb2e961714a9fb2fe4785ec628c0861399d225a6c4
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA4vt:XDqPoBhz1aRxcSUDk36SA9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3344) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
1960	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecisionReason = "1"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecision = "0"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadNetworkName = "Network 3"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\ae-59-e5-63-ee-d8	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecisionTime = 506107edb512db01	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ae-59-e5-63-ee-d8\WpadDecision = "0"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecisionTime = 506107edb512db01	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DCF7C7F-6E45-4C7D-87E0-57267A3AB5FD}\WpadDecisionReason = "1"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1704
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1960

C:\Users\Admin\AppData\Local\Temp\20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240929cde980b30a0348cb7b628aa358fb1944wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
caccfc7db86937024db0586ac5ea8e12

SHA1
524bf433fbe7bf33ecb5ec8f030f948ea1c75216

SHA256
e4e971dfa16e18c6a06322570374f251c99298687f5f7bc35b3b9415ca4bedb6

SHA512
9592c24f40e2db9bcc9d0f16f8699679b39851d33cb5dc37d556a22ce05d28b9fef99f520045d1b1ae13086c41ec45335986e813a76c0c85947088b600c938b0

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